Engine



J. D. INGRAM ENGINE.

APPLlCATION FILED FEB. 7. 1920.

Patented Oct. 18, 1921.

gvwwwio'o JD Ingram q vihwoo NITED STATES PATENT, OFFICE.

JOSEPH D. INGRAM, 0F AMARILLO, TEXAS.

ENGINE.

Specification of Letters Patent.

Patented Oct. 18, 1921.

To all whom it may concem:

Be it known that I, JOSEPH DAN INGRAM, a citizen of the United States, residing at Amarillo, in the county of Potter and 'State of Texas, have invented a new and useful Engine, of which the following is a specification.

This invention relates to engines of that type having radially disposed cylinders, one of the objects of the invention being'to provide means whereby a pair of cylinders may utilize the full bearing surface of a single crank, the piston rods being connected together and mounted on the bearing in a novel manner and being so disposed relative to each other as to'relieve the dead center and materially increase the crank power without lengthening the piston travel.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawing the preferred from of the invention has been shown.

In said drawings Figure 1 is a section through a portion of an engine having the present improvement.

on line 2-2, Fig. 1.

Fig. 2 is a section a V Fig. 3 is a detail view of the ball end of one of the piston rods.

Referring to the figures by characters of reference 1 and 2 designate cylinders of an engine of the V-type and the pistons 3 and 4 therein have rods 5 and 6 respectively con nected thereto. The piston rod 5 is provided at its lower end with an arcuate bearing member or yoke 7 the terminals of which are adapted to receive bolts 8 which serve to fasten a cap 9 to the yoke 7, said cap and yoke cooperating to form a complete bearing member adapted to extend around the crank pin P of the shaft S. The

iston rod 5 is formed integral with the yoke and is disposed close .to one end thereof and formed in the yoke referably midway between saidrod 5 and tl ie other end of the yoke is a recess 10 provided with a bearing plate 11 of any suitable material and which fits snugly in the recess. This plate is adapted to be engaged by a ball 12 formed integral with a neck 13 located at the lower end of the piston rod 6. A retaining cap 14 has one end portion fastened to the yoke 7 by one of the bolts 8. The other end portion of i this cap 14 is slotted, as indicated at 15 and the neck 13 extends through the slot. The

Said cap 14: is recessed so as to fit upon the ball 12 and that end of the cap 14 remote from the bolt 8 is pivotally connected, as at 16, to an ear 1'? formed in the angle between the piston rod 5 and the yoke 7.

Importance is attached to the particular construction described and shown because it allows the two pistons to be coupled to one crank and, by mounting ball 12 toward rod 5 in the direction of travel the dead'center of rod 6 is overcome and the crank power of piston 4 is materially increased without necessitating lengthening the stroke of the piston.

It will also be noted that wear upon the ball 12 and its bearing surfaces can be taken up readily simply by adjusting the bolt 8 which serves to connect the cap 9 at one end to the yoke 7. Thus the parts are reduced to the minimum. Wear upon the parts 9 and 7 can be taken up by removing one or more shims 18 which are interposed between said parts 7 and 9 and upon the bolt 8. Shims can also be removed when it is desired to ad ust the cap 14 relative to the yoke 7.

It will be apparent that as the piston rods 5 and 6 move practically in unison and have very slight relative movement, practically all of the wear resulting from the operation of this apparatus takes place between the parts 7 and 9 and the crank engaged thereby.-

What is claimed is:

1. In an engine the combination with a crank engaging yoke -and a piston rod integral therewith, of another piston rod pivotally connected to the yoke, the two rods being mounted to and se arate means engaged by a single bolt for ho ding the yoke upon a crank and for holding the pivoted piston rod to the yoke. v 2. The combination with a crank engaging element and a piston rod integral thereworkin the same plane, Y

with and radiating therefrom, of a second In testimony that I claim the foregoing movably connected to said e1e-- as my own, I have hereto affixed my signapiston rod ment and adapted to Work in the same plane ture in the presence of two witnesses. with the first named piston rod, and ad- JOSEPH D. INGRAM. 5 justably mounted retaining means carried Witnesses: by said element and holding the movable E. T. DUNAWAY,

- ROYAL P. GANT.

piston rod thereto. 

